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Comparing deliantra/server/common/object.C (file contents):
Revision 1.183 by root, Mon Aug 20 19:13:10 2007 UTC vs.
Revision 1.201 by root, Tue Jan 22 16:22:45 2008 UTC

1/* 1/*
2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team 4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * Crossfire TRT is free software: you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version. 11 * (at your option) any later version.
12 * 12 *
13 * This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
16 * GNU General Public License for more details. 16 * GNU General Public License for more details.
17 * 17 *
18 * You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>. 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * 20 *
21 * The authors can be reached via e-mail to <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <support@deliantra.net>
22 */ 22 */
23 23
24/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects. 24/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25 sub/add_weight will transcend the environment updating the carrying 25 sub/add_weight will transcend the environment updating the carrying
26 variable. */ 26 variable. */
254 /* This is really a spellbook check - really, we should 254 /* This is really a spellbook check - really, we should
255 * check all objects in the inventory. 255 * check all objects in the inventory.
256 */ 256 */
257 if (ob1->inv || ob2->inv) 257 if (ob1->inv || ob2->inv)
258 { 258 {
259 /* if one object has inventory but the other doesn't, not equiv */ 259 if (!(ob1->inv && ob2->inv))
260 if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) 260 return 0; /* inventories differ in length */
261 return 0;
262 261
263 /* Now check to see if the two inventory objects could merge */ 262 if (ob1->inv->below || ob2->inv->below)
263 return 0; /* more than one object in inv */
264
264 if (!object::can_merge (ob1->inv, ob2->inv)) 265 if (!object::can_merge (ob1->inv, ob2->inv))
265 return 0; 266 return 0; /* inventory objexts differ */
266 267
267 /* inventory ok - still need to check rest of this object to see 268 /* inventory ok - still need to check rest of this object to see
268 * if it is valid. 269 * if it is valid.
269 */ 270 */
270 } 271 }
305 { 306 {
306 ob1->optimise (); 307 ob1->optimise ();
307 ob2->optimise (); 308 ob2->optimise ();
308 309
309 if (ob1->self || ob2->self) 310 if (ob1->self || ob2->self)
310 if (!cfperl_can_merge (ob1, ob2)) 311 {
312 int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
313 int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
314
315 if (k1 != k2)
311 return 0; 316 return 0;
317 else if (k1 == 0)
318 return 1;
319 else if (!cfperl_can_merge (ob1, ob2))
320 return 0;
321 }
312 } 322 }
313 323
314 /* Everything passes, must be OK. */ 324 /* Everything passes, must be OK. */
315 return 1; 325 return 1;
316} 326}
374/* 384/*
375 * get_nearest_part(multi-object, object 2) returns the part of the 385 * get_nearest_part(multi-object, object 2) returns the part of the
376 * multi-object 1 which is closest to the second object. 386 * multi-object 1 which is closest to the second object.
377 * If it's not a multi-object, it is returned. 387 * If it's not a multi-object, it is returned.
378 */ 388 */
379
380object * 389object *
381get_nearest_part (object *op, const object *pl) 390get_nearest_part (object *op, const object *pl)
382{ 391{
383 object *tmp, *closest; 392 object *tmp, *closest;
384 int last_dist, i; 393 int last_dist, i;
438{ 447{
439 // allow objects which own objects 448 // allow objects which own objects
440 if (owner) 449 if (owner)
441 while (owner->owner) 450 while (owner->owner)
442 owner = owner->owner; 451 owner = owner->owner;
452
453 if (flag [FLAG_FREED])
454 {
455 LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
456 return;
457 }
443 458
444 this->owner = owner; 459 this->owner = owner;
445} 460}
446 461
447int 462int
579object::copy_to (object *dst) 594object::copy_to (object *dst)
580{ 595{
581 *dst = *this; 596 *dst = *this;
582 597
583 if (speed < 0) 598 if (speed < 0)
584 dst->speed_left = speed_left - rndm (); 599 dst->speed_left -= rndm ();
585 600
586 dst->set_speed (dst->speed); 601 dst->set_speed (dst->speed);
587} 602}
588 603
589void 604void
916 931
917 if (!freed_map) 932 if (!freed_map)
918 { 933 {
919 freed_map = new maptile; 934 freed_map = new maptile;
920 935
936 freed_map->path = "<freed objects map>";
921 freed_map->name = "/internal/freed_objects_map"; 937 freed_map->name = "/internal/freed_objects_map";
922 freed_map->width = 3; 938 freed_map->width = 3;
923 freed_map->height = 3; 939 freed_map->height = 3;
940 freed_map->nodrop = 1;
924 941
925 freed_map->alloc (); 942 freed_map->alloc ();
926 freed_map->in_memory = MAP_IN_MEMORY; 943 freed_map->in_memory = MAP_IN_MEMORY;
927 } 944 }
928 945
1140merge_ob (object *op, object *top) 1157merge_ob (object *op, object *top)
1141{ 1158{
1142 if (!op->nrof) 1159 if (!op->nrof)
1143 return 0; 1160 return 0;
1144 1161
1145 if (top) 1162 if (!top)
1146 for (top = op; top && top->above; top = top->above) 1163 for (top = op; top && top->above; top = top->above)
1147 ; 1164 ;
1148 1165
1149 for (; top; top = top->below) 1166 for (; top; top = top->below)
1150 { 1167 {
1231 1248
1232 object *top, *floor = NULL; 1249 object *top, *floor = NULL;
1233 1250
1234 op->remove (); 1251 op->remove ();
1235 1252
1236 if (out_of_map (m, op->x, op->y))
1237 {
1238 LOG (llevError, "Trying to insert object outside the map.\n%s\n", op->debug_desc ());
1239#ifdef MANY_CORES
1240 /* Better to catch this here, as otherwise the next use of this object
1241 * is likely to cause a crash. Better to find out where it is getting
1242 * improperly inserted.
1243 */
1244 abort ();
1245#endif
1246 return op;
1247 }
1248
1249 if (object *more = op->more)
1250 if (!insert_ob_in_map (more, m, originator, flag))
1251 return 0;
1252
1253 CLEAR_FLAG (op, FLAG_REMOVED);
1254
1255 /* Ideally, the caller figures this out. However, it complicates a lot 1253 /* Ideally, the caller figures this out. However, it complicates a lot
1256 * of areas of callers (eg, anything that uses find_free_spot would now 1254 * of areas of callers (eg, anything that uses find_free_spot would now
1257 * need extra work 1255 * need extra work
1258 */ 1256 */
1259 if (!xy_normalise (m, op->x, op->y)) 1257 if (!xy_normalise (m, op->x, op->y))
1258 {
1259 op->destroy ();
1260 return 0; 1260 return 0;
1261 }
1262
1263 if (object *more = op->more)
1264 if (!insert_ob_in_map (more, m, originator, flag))
1265 return 0;
1266
1267 CLEAR_FLAG (op, FLAG_REMOVED);
1261 1268
1262 op->map = m; 1269 op->map = m;
1263 mapspace &ms = op->ms (); 1270 mapspace &ms = op->ms ();
1264 1271
1265 /* this has to be done after we translate the coordinates. 1272 /* this has to be done after we translate the coordinates.
1300 else 1307 else
1301 { 1308 {
1302 top = ms.bot; 1309 top = ms.bot;
1303 1310
1304 /* If there are other objects, then */ 1311 /* If there are other objects, then */
1305 if ((!(flag & INS_MAP_LOAD)) && top) 1312 if (top)
1306 { 1313 {
1307 object *last = 0; 1314 object *last = 0;
1308 1315
1309 /* 1316 /*
1310 * If there are multiple objects on this space, we do some trickier handling. 1317 * If there are multiple objects on this space, we do some trickier handling.
1362 */ 1369 */
1363 if (last && last->below && last != floor) 1370 if (last && last->below && last != floor)
1364 top = last->below; 1371 top = last->below;
1365 } 1372 }
1366 } /* If objects on this space */ 1373 } /* If objects on this space */
1367 if (flag & INS_MAP_LOAD)
1368 top = ms.top;
1369 1374
1370 if (flag & INS_ABOVE_FLOOR_ONLY) 1375 if (flag & INS_ABOVE_FLOOR_ONLY)
1371 top = floor; 1376 top = floor;
1372 1377
1373 /* Top is the object that our object (op) is going to get inserted above. 1378 /* Top is the object that our object (op) is going to get inserted above.
1406 op->map->touch (); 1411 op->map->touch ();
1407 } 1412 }
1408 1413
1409 op->map->dirty = true; 1414 op->map->dirty = true;
1410 1415
1411 if (!(flag & INS_MAP_LOAD))
1412 if (object *pl = ms.player ()) 1416 if (object *pl = ms.player ())
1413 pl->contr->ns->floorbox_update (); 1417 pl->contr->ns->floorbox_update ();
1414 1418
1415 /* If this object glows, it may affect lighting conditions that are 1419 /* If this object glows, it may affect lighting conditions that are
1416 * visible to others on this map. But update_all_los is really 1420 * visible to others on this map. But update_all_los is really
1417 * an inefficient way to do this, as it means los for all players 1421 * an inefficient way to do this, as it means los for all players
1418 * on the map will get recalculated. The players could very well 1422 * on the map will get recalculated. The players could very well
1955 * activate recursively a flag on an object inventory 1959 * activate recursively a flag on an object inventory
1956 */ 1960 */
1957void 1961void
1958flag_inv (object *op, int flag) 1962flag_inv (object *op, int flag)
1959{ 1963{
1960 if (op->inv)
1961 for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below) 1964 for (object *tmp = op->inv; tmp; tmp = tmp->below)
1962 { 1965 {
1963 SET_FLAG (tmp, flag); 1966 SET_FLAG (tmp, flag);
1964 flag_inv (tmp, flag); 1967 flag_inv (tmp, flag);
1965 } 1968 }
1966} 1969}
1967 1970
1968/* 1971/*
1969 * deactivate recursively a flag on an object inventory 1972 * deactivate recursively a flag on an object inventory
1970 */ 1973 */
1971void 1974void
1972unflag_inv (object *op, int flag) 1975unflag_inv (object *op, int flag)
1973{ 1976{
1974 if (op->inv)
1975 for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below) 1977 for (object *tmp = op->inv; tmp; tmp = tmp->below)
1976 { 1978 {
1977 CLEAR_FLAG (tmp, flag); 1979 CLEAR_FLAG (tmp, flag);
1978 unflag_inv (tmp, flag); 1980 unflag_inv (tmp, flag);
1979 } 1981 }
1980} 1982}
1981 1983
1982/* 1984/*
1983 * find_free_spot(object, map, x, y, start, stop) will search for 1985 * find_free_spot(object, map, x, y, start, stop) will search for
1984 * a spot at the given map and coordinates which will be able to contain 1986 * a spot at the given map and coordinates which will be able to contain
1986 * to search (see the freearr_x/y[] definition). 1988 * to search (see the freearr_x/y[] definition).
1987 * It returns a random choice among the alternatives found. 1989 * It returns a random choice among the alternatives found.
1988 * start and stop are where to start relative to the free_arr array (1,9 1990 * start and stop are where to start relative to the free_arr array (1,9
1989 * does all 4 immediate directions). This returns the index into the 1991 * does all 4 immediate directions). This returns the index into the
1990 * array of the free spot, -1 if no spot available (dir 0 = x,y) 1992 * array of the free spot, -1 if no spot available (dir 0 = x,y)
1991 * Note - this only checks to see if there is space for the head of the
1992 * object - if it is a multispace object, this should be called for all
1993 * pieces.
1994 * Note2: This function does correctly handle tiled maps, but does not 1993 * Note: This function does correctly handle tiled maps, but does not
1995 * inform the caller. However, insert_ob_in_map will update as 1994 * inform the caller. However, insert_ob_in_map will update as
1996 * necessary, so the caller shouldn't need to do any special work. 1995 * necessary, so the caller shouldn't need to do any special work.
1997 * Note - updated to take an object instead of archetype - this is necessary 1996 * Note - updated to take an object instead of archetype - this is necessary
1998 * because arch_blocked (now ob_blocked) needs to know the movement type 1997 * because arch_blocked (now ob_blocked) needs to know the movement type
1999 * to know if the space in question will block the object. We can't use 1998 * to know if the space in question will block the object. We can't use
2001 * customized, changed states, etc. 2000 * customized, changed states, etc.
2002 */ 2001 */
2003int 2002int
2004find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop) 2003find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2005{ 2004{
2005 int altern[SIZEOFFREE];
2006 int index = 0, flag; 2006 int index = 0, flag;
2007 int altern[SIZEOFFREE];
2008 2007
2009 for (int i = start; i < stop; i++) 2008 for (int i = start; i < stop; i++)
2010 { 2009 {
2011 flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]); 2010 mapxy pos (m, x, y); pos.move (i);
2012 if (!flag) 2011
2012 if (!pos.normalise ())
2013 continue;
2014
2015 mapspace &ms = *pos;
2016
2017 if (ms.flags () & P_IS_ALIVE)
2018 continue;
2019
2020 /* However, often
2021 * ob doesn't have any move type (when used to place exits)
2022 * so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
2023 */
2024 if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
2025 {
2013 altern [index++] = i; 2026 altern [index++] = i;
2027 continue;
2028 }
2014 2029
2015 /* Basically, if we find a wall on a space, we cut down the search size. 2030 /* Basically, if we find a wall on a space, we cut down the search size.
2016 * In this way, we won't return spaces that are on another side of a wall. 2031 * In this way, we won't return spaces that are on another side of a wall.
2017 * This mostly work, but it cuts down the search size in all directions - 2032 * This mostly work, but it cuts down the search size in all directions -
2018 * if the space being examined only has a wall to the north and empty 2033 * if the space being examined only has a wall to the north and empty
2019 * spaces in all the other directions, this will reduce the search space 2034 * spaces in all the other directions, this will reduce the search space
2020 * to only the spaces immediately surrounding the target area, and 2035 * to only the spaces immediately surrounding the target area, and
2021 * won't look 2 spaces south of the target space. 2036 * won't look 2 spaces south of the target space.
2022 */ 2037 */
2023 else if ((flag & P_NO_PASS) && maxfree[i] < stop) 2038 if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
2039 {
2024 stop = maxfree[i]; 2040 stop = maxfree[i];
2041 continue;
2042 }
2043
2044 /* Note it is intentional that we check ob - the movement type of the
2045 * head of the object should correspond for the entire object.
2046 */
2047 if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
2048 continue;
2049
2050 if (ob->blocked (m, pos.x, pos.y))
2051 continue;
2052
2053 altern [index++] = i;
2025 } 2054 }
2026 2055
2027 if (!index) 2056 if (!index)
2028 return -1; 2057 return -1;
2029 2058
2038 */ 2067 */
2039int 2068int
2040find_first_free_spot (const object *ob, maptile *m, int x, int y) 2069find_first_free_spot (const object *ob, maptile *m, int x, int y)
2041{ 2070{
2042 for (int i = 0; i < SIZEOFFREE; i++) 2071 for (int i = 0; i < SIZEOFFREE; i++)
2043 if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i])) 2072 if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2044 return i; 2073 return i;
2045 2074
2046 return -1; 2075 return -1;
2047} 2076}
2048 2077

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